Fair Value (Details Textual) (USD $)	12 Months Ended		12 Months Ended			12 Months Ended
	Dec. 29, 2012 Sigrity [Member]	Jul. 02, 2012 Sigrity [Member]	Dec. 31, 2011 2011 Acquisitions [Member]	Jan. 01, 2011 Two Thousand Ten Acquisitions [Member]	Jun. 30, 2010 Denali Software Inc [Member]	Dec. 29, 2012 Fair Value, Inputs, Level 3 [Member] Sigrity [Member]	Dec. 29, 2012 Intangible Assets [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member] Sigrity [Member]	Dec. 29, 2012 Intangible Assets [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member] Sigrity [Member]	Dec. 29, 2012 Contingent Consideration Liability [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member]	Dec. 31, 2011 Contingent Consideration Liability [Member] Fair Value, Inputs, Level 3 [Member] Minimum [Member]	Dec. 29, 2012 Contingent Consideration Liability [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member]	Dec. 31, 2011 Contingent Consideration Liability [Member] Fair Value, Inputs, Level 3 [Member] Maximum [Member]
Fair Value of Financial Instrument (Textual) [Abstract]
Acquired Intangible Assets, Amount	$ 40,600,000		$ 21,600,000	$ 171,000,000
Fair Value Inputs, Discount Rate						3.00%	11.00%	12.00%	11.00%	11.00%	16.00%	16.00%
Deferred revenue		$ (3,800,000)			$ (11,259,000)
Fair Value Inputs, Estimated Profit Rate						25.00%